Impact bar for automobile bumpers



1927. Aug 16, H, TAYLO IMPACT BAR FOR AUTOMOBILE BUMPERS Filed Jan. 51. 1927 Patented Aug. 16, 1927:.

UNITED sTA'Tss assen PATENT orrica.

HUSTON TAYLOR, OF DETROIT. MICHIGAN.

i IMPACT BAR FOE AUTOMOBILE BUNPEKS.

Application flied January 31, 1927. Serial No. 164,815.

My invention relates to a construction of an impact bar for autoi nobiles which is in itself resilient I My invention relates to an 'impact' bar for automobiles, of an; incomplete tubular construction, in .whic there is resiliency between the supporting and impact portions.

My invention relates to an impact banter automobiles, consisting of a tube of resilient metal, open longitudinally, and means for reinforcing the impact, and supporting por tions, also providing internal coils of springs to assist the resiliency of the external tube.

My invention further provides end portions, constructed to act with the resiliency of an automobile impact bar constructed of a tube of spring metal open longitudinally along the bottom.

I obtain these objects by the construction illustrated in the accompanying. drawings in whichi Figure 1 is a top plan view of a fragmentalimpact bar for automobiles.

Figure 2 is a cross section elevation of a spring tubular bumper bar.

Figure 3 is a cross section elevation of a spring tubular bumper bar with external and internal reinforcement.

Figure 4 is across section elevation of a spring bumper bar showing reinforcement on the impact side and an internal spring reinforcement.

spring bumper bar, of more or less.spiral design, having a complete tube inside of an incomplete tube.

Figure 6 is a fragmental portion of the bumper bar showing a different end construction.

Similar numerals'refer to similar parts throughout the several views. p

The bumper bar 1 in the several vieivsis constructedof resilient sheet metal curved to give the appearance of a round'tube. 'A longitudinalopening 2, is provided between the longitudinal edgesof the sheet metal, to give space for movement between the front or impact side 14, and the back or supporting side of the bumper. Brackets 5, engage the supporting side of the impactbumper bar. In Figure 3, the supporting bracket encircles the spring tubular impaot.bar, for the purpose of not only supporting it but also for reinforcing .it from without and holding it in place against its tendency to expand. An internal projection 11, of bracket 5, assists in holding the tube in place against rotation. A reinforcement form of metal 6, engages the impact side 14, at 8,

and another reinforcing segment of metal l 13, enga es the supporting side of the spring tubular ar. These engagements of the reinforcing shapes may be by welding or other convenient means. In Figure 1 end caps 3 engage to said bar by bolts 4.

In Figure 4 the reinforcement of the impact side 151, of the bumper bar is accomplished by folding portion 9, inwardly and Hanging upward for engagement at 8". Internal springs 12, may be secured within the tubular bar to assist the return of the said bar to normal position after the compression caused by an impact. In Figure 5 we have another variet of internal reinforce ment of said spring umper bar, by the 001m pletion or near completion of a round tube .the impact side, thus enabling it to move with the front or impact portion.

In the operation of my invention it will be observed that the side of the bumper near the vehicle does not travel toward the vehicle but remains in position while the resiliency of the bumper bar itself absorbs the shock ofordinary impacts. Figure 5 is a cross section elevation of a g It has an economic advantage .over the usual constructions in that additional spring mountings are not necessary, but they may be added if desired. The'installation of my invention of a new construction of bumper bar may be accomplished across the front or rear of a motor driven vehicle or in short lengths as fender protectors in the rear by appropriate brackets engaging the rigid portions of the frame of said vehicle.

I claim 1. An impact bar for motor driven vehicles, consisting of an elongated sheet of re silient metal curved transversely with the longitudinal edges spaced from each other.

'2. An impact bar for motor driven vehi cles, consisting of an" elongated tube of resilient sheet metal, opened longitudinally providing for a resilient movement between the longitudinal edges of said sheet metal.

3. An impact bar for motor driven vehicles. consisting of an elongated curved channel of spring metal, having the, opening of the channel downward, means for support ing said channel at intervals on one side near cles, consisting of an elongated roll of spring metal, said roll open at the bottom, means for supporting said roll on the side opposite the side designed to receive impact.

5. An impact bar for an automobile bumper consistin of an elongated sheet of spring steel, so r0 led or shaped and the longitudinal edges so opened at the bottom that there is a. sp'rin action between the front or impact side an the rear or supporting side.

-6 An impact bar for motor driveir-vchicles consisting of an' elongated sheet of spring steel l olled with the free edges downward rQvidmg-reinforcement of the impact side 0 saidbar substantially as set forth.

7. An act bar for motordriven vehi fcles consisting of an elongated sheet of 'springsteel transversely rolled, brackets for holding said rolled sheet in form by encircling the sunset the end portions.

8 4n impact bar for motor driven vehicles comprising its-sheet metal member hava portion thereof adapted'to be fixed to to extend across a vehicle and another inherently resilient portion extending substantially thelength of said first named portion and transversely yieldable with respect thereto.

9. An impact bar for motor driven vehicles comprising a sheet metal member having a portion thereof adapted to be fixed to the vehicle and another inherently resilient portion substantially longitudinally coextensive with said first named portion and transversely yieldable with respeetthereto, said portions forming a bar that is tubular in appearance as ordinarily viewed when in operative position on the vehicle.

10. An automobile bumper comprising rigid end brackets and an inherently resilient sheet metal impact bar having its ends telescoped within said brackets in such men ner that undue expansion of jhe bar is prevented while permitting the contraction of the bar under conditions'encountered in service.

11. An impact bar comprising an elongatedsheet of resilient, metal with a section thereof curved transversely and with the longitudinal edges thereof resiliently movable with relation to each other.

HUSTON TAYLOR. 

